Nail puller



A. SCHREIVI.

NAIL FULLER.

APPLICATION FILED SEPT. 3. 1921.

Patented. 31111913, 1922.

Amara? Sal 2mm ALBERT SCHREM, 0F GIENGEN, GERMANY.

NAIL FULLER.

Application filed September T 0 all whom it may concern Be it known that I, ALBERT SoHnnM, a citizen of the German Republic, residing at Giengen, Germany, have invented certain new and useful Improvements in N ail Pullers (for which I have filed an application in Germany August 28, 11920), of which the following is a specification.

This invention relates to a nail puller which is constructed so that it is not only possible to pull the nails out witl'ioutbending but to deposit the pulled out nails directly from the nail-puller into a box, the nails being prevented from drop ping prematurely out of the nail puller.

The improved. nail puller is further easy to manipulate and it presents a specially favorable transmission owing to the arrangement of a convenient transmission device-for gripping the head of the nail and for loosening the nail without expense of great energy. I

The improved nail puller consists essentially of pincers, a. supporting frame with straight guide for the pincers and with lateral guide surfaces for two hand levers which are each linked to one jaw of the pincers.

In order that the invention may be clearly understood, T shall proceed to describe the same with reference to the form of construetion shown by way of example on the accompanying drawing, where-in Fig. 1 is a side elevation of the nail puller, the pincers being open.

Fig. 2 is a plan view of 1, the hand levers being shown in section on line A-B of Fig. 1.

Fig. 3 is a section on line CD of Fig. 2, the different parts being in the same position as on Fig. 1, the pincers open.

Fig. 4 shows a section on line E F of Fig. 1 the supporting frame, the other parts of the instrument being shown in elevation.

Fig. 5 is a. similar view as Fig. 3 showing the parts in the position when the pincers have gripped the nail head and when the nail has been slightly loosened.

Fig. 6 is again a similar view as Fig. {3, the different parts being shown in the position which they adopt when the nail has" been pulled out and is held to the moment when it is to be thrown out.

The gripping jaws of the plncers are designated by 1, the supporting frame by 2 and the hand levers by 3. The supporting frame 2 is box-shaped and has feet 4: and

Specification of Letters Patent. Pamtgntgd J ne 13 11922 Serial No. 498,386.

guide slots 5 for the hand levers 8. The middle parts 6 of the upper and lower walls have each slot 7 which stand perpendicular to the supporting surfaces of feet 4. The slots 7 serve to guide the pivot bolt 8 0f the pincers and another pivot bolt 9. The outer edges of the parts 6 are bent downward to form longitudinal flanges 10 and lateral flanges 11 at the front ends of the flanges 10 which stand at an obtuse angle to said longitudinal edges.

The outer side walls of the frame 2, which are shown on Figs. 2, 5 and 6 in section, are curved to form rolling curves 12 upon which the hand lovers 3 roll when the instrument is in use, as can be seen from Fig. 5.

he hand levers 3 are pivoted by pivot pins 13 to the arms 1 1 of the pineers. Links 15 pivoted upon said pins 13 are pivoted with their other ends upon the common pivot pin 9. The obliquely cut ends of the arms 14 of the pincers form abutment surfaces which can oo-operate with the flanges 11 as shown on Fig. 3. The nail puller is operated in the followmg manner To grip the head of a nail the hand levers 3 of the instrument are gripped with both hands and brought into the position Fig. 1 by pressing the hand levers 3 together. The jaws 1 of the pincers are thus opened and the ends of the arms 14 of the pincers get under the flanges 11 so that the jaws of the pincers are pressed into the surface upon which the feet 4% rest, for instance the wood of the lid of a box from which a nail has to be pulled.

If new with a certain pressure the hand lovers 3 are moved outward. away from one another, the jaws of the pincers are closed so that they grip the nail head. The arms 14 of the aws are thus moved so that they engage between the flanges 10 to move up in the guide rail formed by said flanges when the hand levers are pressed further outward, said hand levers rolling along the curves 12 (Fig. The outward movement of the hand lovers 3 can be continued until the parts adopt the position shown on Fig. 6. The nail 16 which has been pulled out is in the frame 2 and it cannot be released by the pincers even when the levers 3 are considerably moved until, owing to the hand levers being pressed together, the pincers are pushed forward so that they get free of the flanges 10, whereby the jaws of the pincers are opened and release the nail, which takes place as soon as the parts are in the position shown on Fig. 3.

lin order to prevent the bendingjof the walls 6 which have the slots 7 these slots When the lower ends of Walls 6 are bent outward, as indicated on Figs. 6 and 7 in dash and dot lines, the pivot pins 8 and 9 can be removed through the lower guide slot 17, whereupon the movable parts of the nail puller can be pulled out (after the hand levers have been taken off before) at the lower side of the box-shaped frame 2 or they can be reinserted. There are no screw connections required.

I claim l. An improved nail puller comprising in combination pincers, a box-shaped supporting framein which said pincers are located, a straight guide for the arms of said pincers in the supporting frame, two hand levers hingedly fixed upon the arms of said pincers and lateral curved guiding surfaces of said support upon which the said hand levers roll when they are being moved.

2. An improved nail puller comprising in combination pincers, a box-shaped supporting frame in which said pincers are located, a straight guide for the arms of said pincers in the supporting frame, two handlevers hingedly fixed upon the arms of said pincers and lateral curved guiding surfaces of said support upon which the said hand levers roll when they are being moved, said lateral guiding surfaces being of such a shape that at the oscillating movement of the hand levers in outward direction when the pincers are being closed and pulled back, the point of contact of said hand levers with said curved guiding surfaces moves away from a point which is situated in close proximity of the points where the levers are hinged to the pincers.

3. An improved nail puller comprising in combination pincers, a box-shaped supporting frame in which said pincers are located, a straight guide for the arms of said pincers in the supporting frame formed by lateral can be bridged over by curved cover plates inwardly curved flanges at the sides of the top and bottom plates of said box-shaped supporting frame,'said plates having each alongitudinal guide slot for the pivot pin of the pincers, two hand levers hingedly fixed upon the arms of said pincers at a certain distance behind said pivot pin, links pivoted with one end to the front ends of said hand levers, a pivot pin hingedly connecting the other ends of said links and guided in said guide slot said links forming two sides of a parallelogram whose other two sides are formed by the arms of the pin cers and lateral curved guiding surfaces of the said support upon which the said hand levers roll when they are being moved.

a. An improved nail puller comprising in combination pincers, a box-shaped supporting frame in which said pincers are located, a straight guide for the arms of said pincers in the supporting frame, said guide being formed so that the pincers can be opened only when they are in the front end of the guide, two hand levers hingedly fixed upon the arms of said pincers and lateral curved guiding surfaces of the said support upon which the said hand levers roll when they are being moved.

5. An improved nail puller comprising in combination pincers, a box-shaped supporting frame in which said pincers are located, a straight guide for the arms of said pincers in the supporting frame, said guide being formed so that the pincers can be opened- In testimony whereof I aflix my signature in presence of two witnesses.

ALBERT SCHREM. lVitnesses:

E. SoHLmoHER, FRIEDE KLmBnR. 

